diff --git a/bin/app-json.py b/bin/app-json.py
index 0fbf1ac..32bc853 100755
--- a/bin/app-json.py
+++ b/bin/app-json.py
@@ -13,7 +13,7 @@ from os.path import basename, exists, expanduser
 from pathlib import Path
 from re import findall, search
 from shlex import split
-from subprocess import check_output
+from subprocess import check_output, DEVNULL
 from sys import exit
 
 from requests import get
@@ -31,6 +31,8 @@ REPOS_TO_SKIP = (
     "organising",
     "pyabra",
     "stack-ssh-deploy",
+    "radicle-seed-node",
+    "coturn"
 )
 
 log = getLogger(__name__)
@@ -38,10 +40,9 @@ basicConfig()
 log.setLevel(DEBUG)
 
 
-def _run_cmd(cmd, shell=False):
+def _run_cmd(cmd, shell=False, **kwargs):
     """Run a shell command."""
     args = [split(cmd)]
-    kwargs = {}
 
     if shell:
         args = [cmd]
@@ -187,7 +188,8 @@ def get_app_versions(app_path, cached_apps_json):
         existing_tags = []
 
     for tag in tags:
-        _run_cmd(f"git checkout {tag}")
+        _run_cmd(f"git checkout {tag}",
+                 stderr=DEVNULL)
 
         services_cmd = f"{YQ_PATH} e '.services | keys | .[]' compose*.yml"
         services = _run_cmd(services_cmd, shell=True).split()